Melody Bird discovers an old abandoned house in the corner of the      graveyard, and a mysterious boy hiding out there... Hal says he's      a spy-in-training, conducting undercover surveillance of a known      local criminal. Matthew and Jake don't believe Hal and decide to      spy on him, uncovering secrets and unravelling a mystery as they      go.

The graveyard riddle

£6.99Price
  • Scholastic